Dec 10, 2021 · Jul 22, 2021 · solar road stud on motorway. The LED solar road studs have five colors to choose from. NOKIN also provide ODM and OEM service, if you want to paint your brand logo on the LED solar road stud or want to have different light color, contacting us is a wise decision! info@nk-roadstud.com. +86-13602600950.